<!doctype html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title></title> 
    
</head>
<body>

<script type="text/javascript">
document.body.innerHTML = (Math.random()*1.6).toFixed(1);
t = setInterval(function (){
	document.body.innerHTML = (Math.random()*1.6).toFixed(1);
},3);
document.body.style.fontSize = '50px';
document.body.style.textAlign = 'center';
document.body.style.lineHeight = innerHeight+'px';

document.onclick = x => {
	clearInterval(t);
}


    </script>
</body>
</html>